Mexican postage stamp issued to commemorate the 40th anniversary of the nationalization of all petroleum reserves, facilities, and foreign oil companies in Mexico and the establishment of the state-owned petroleum…

Mexican postage stamp issued to commemorate the 20th anniversary of the nationalization of all petroleum reserves, facilities, and foreign oil companies in Mexico and the establishment of the state-owned petroleum…

Mexican postage stamp celebrating the 7th World Petroleum Congress, which was held in Mexico City from April 2-9, 1967. The stamp features an illustrated depiction of an oil refinery.

Mexican postage stamp issued to commemorate the 40th anniversary of the founding of the Instituto Politécnico Nacional de México (the National Polytechnic Institute of Mexico) on January 1, 1936. Established during the…

Mexican postage stamp issued to commemorate the 25th anniversary of the founding of the Instituto Politécnico Nacional de México (the National Polytechnic Institute of Mexico) on January 1, 1936. Established during the…

Mexican postage stamp commemorating the 200th anniversary of the birth of Spanish-Mexican scientist, engineer, and naturalist Andrés Manuel del Río (1764-1849) best known for his discovery of compounds of vanadium in…

Colorano cachet includes a silk depiction of two alchemists in a laboratory. Stamp depicts chemical glassware and fluids.

Depicts the Salinas Salt Springs in the Philippines.

Depicts Louis Jacques Thénard, French chemist and the founder of the Société de Secours des Amis des Sciences.

Depicts Justus von Liebig, known for his work in agricultural and organic chemistry.

Depicts Fritz Haber and Max Planck, Nobel Prize laureates in Chemistry and Physics.

Cachet depicts Otto Hahn's equipment and the nuclear fission of uranium atoms. Stamp shows Hahn's diagram of the splitting of the uranium nucleus. Hahn was the Nobel Prize Winner for Chemistry in 1944.

Stamps depict Niels Bohr, the equation for the Bohr frequency condition (an equation relating to light frequency and electrons), and a diagram of the Bohr model of a hydrogen atom.

Depicts Alexander Fleming, who won the Nobel Prize for the discovery of penicillin.

Cachet shows the Curie laboratory in Paris, and stamps depict Marie Curie with a bowl of radium.

Depicts awardees of the 1901 Nobel Prizes: Wilhelm Conrad Röntgen in Physics, Sully Prudhomme in Literature, Emil von Behring in Physiology or Medicine, and Jacobus Henricus van 't Hoff in Chemistry.

Depicts Wilhelm Conrad Röntgen, awarded the first Nobel Prize in Physics for the discovery of X-rays, along with an X-ray tube and an atom.

Postcard image is a reproduction of Finnish painter Albert Edelfelt's famed portrait "Pasteur Dans Son Laboratoire" [Pasteur In His Laboratory]. The portrait depicts Pasteur in his laboratory at the rue d'Ulm,…

Stamp issued during International Women's Year (1975), depicting Marie Curie, "discoverer of radium," by the former British colony Saint Christopher-Nevis-Anguilla (now called the Federation of Saint Kitts and Nevis.)

Depicts Isaac Newton.

Stamp depicts Boeing 707, chemical apparatus, and heavy oxygen isotopes.

Philatelic First Day Cover commemorating the 2nd centenary of the birth of Antoine Laurent Lavoisier (1743-1794), who is widely considered the father of modern chemistry.

Stamp issued by the Yemen Arab Republic depicting Persian polymath Avicenna (circa 980 - 1037), also known as Ibn Sina, Abu Ali Sina, and Pur Sina, as well as red roses and the new World Health Organization headquarters…

Stamp depicts measuring instruments.

Depicts Joseph Priestley, often credited for the discovery of oxygen.